The deviation of light path in Einstein-Brans-Dicke theory

Details The deviation of light path in Einstein-Brans-Dicke theory The deviation of light path in Einstein-Brans-Dicke theory

Feb 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005ap%26ss.295..493h&link_type=abstract

Astrophysics and Space Science, Volume 295, Issue 4, pp.493-505

Mathematics

Logic

3

Ebd Theory, Spherically Symmetric Metric, Cosmological Medel, Deviation Of Light Path

Scientific paper

Both Jordan-Brans-Dicke (shortened JBD) theory and Brans-Dicke theory in the Einstein’s frame (shortened EBD) are treated as Brans-Dicke theory. However, we learn that only Pauli metric represents the massless spin-two graviton and thus, should be identified as physical. If one just considers the weak field approximation and Newtonian limit, EBD theory gives the same results with Einstein’s general relativity. So, it is necessary to consider strong field effects and cosmological model. The purpose of this paper is to find the exact spherically symmetric metric in the strong field situation, and deduce the deviation of light path in EBD theory.

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